Re: RT vs. GT again.................
I traded my 06 RT for an 07 GT. Here are my thoughts after life with both.
The GT obviously has the monster engine, which is a big allure. It loves high speed cruising, and provides the smoothness that RT does not provide at higher RPM. I found that 85-90 mph cruising was where my RT felt the roughest, but overall the boxer is a smooth engine. It's a shame the counterbalancers were not dialed in better for the speed range I like to ride at.
When I bought the GT and rode it home, my first thoughts were.....what did I just do? Even with the bars up all the way, I felt pressure on my wrists, and shoulders. I am also getting knee pain as a result of having less leg room. As similar as the riding positions may seem on the showroom floor, the RT is measurably more comfortable in real world riding. I also tend to slide forward on the GT. I thought a change to an aftermarket seat would cure this, but it still is a problem with the Corbin saddle. I may need to send it back and have them build it up in the front.
I also feel the RT handles slightly better. It is a touch lighter and just feels lighter on it's feet. Some may disagree, but to me it was more fun in the twisties. Moreover, the wind protection was bette on the RT.
Now, here's the bottom line. After adding bar risers, Aeroflow windshield, and Corbin seat, the GT is infinately more comfortable than it was stock. However, I will probably add a peg lowering kit to try and reduce my knee pain. So to sum it up, if you buy the GT, you might want to prepare yourself for modifying it to get you close to RT comfort.
Frankly, I find I am missing my RT and may end up going back to an RT next year if I am disatisfied with the comfort at the end of the riding season.
Your choice, but unless you really need to cruise at 90+mph and want triple digit speed dominance, the RT will do everything the GT does, only better.